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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Earth drilling and mining

Earth drilling and mining Patent Leaders in 2020 2020

Primary CPC class E21 · Section E

Rankings count each patent once by its primary Cooperative Patent Classification. All-time pages aggregate the full database; year pages use patent grant year.

Recent years: 2016201720182019202020212022202320242025

Patents per Year

Patents granted per year, 1996 to 2025Bar chart with a peak of 3,238 patents in 2019.peak 3,2381996: 634 patents19961997: 557 patents1998: 796 patents1999: 838 patents19992000: 974 patents2001: 1,102 patents2002: 1,020 patents20022003: 1,014 patents2004: 1,046 patents2005: 877 patents20052006: 1,183 patents2007: 1,049 patents2008: 1,132 patents20082009: 1,088 patents2010: 1,656 patents2011: 1,495 patents20112012: 1,736 patents2013: 1,847 patents2014: 2,135 patents20142015: 2,318 patents2016: 2,454 patents2017: 2,612 patents20172018: 2,721 patents2019: 3,238 patents2020: 3,076 patents20202021: 2,876 patents2022: 2,754 patents2023: 2,767 patents20232024: 2,676 patents2025: 2,630 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Burkay Donderici 32 Halliburton Energy Services
2 Roger L. Schultz 28 Thru Tubing Solutions
3 Michael Linley Fripp 27 Halliburton Energy Services
#4 Brock Watson 23 Thru Tubing Solutions
#5 Jason D. Dykstra 20 Halliburton Energy Services
#6 Mohamed Nabil Noui-Mehidi 17 Saudi Arabian Oil
#7 John T. Hardesty 16 Geodynamics
#8 Aaron W. Logan 15 Evolution Engineering
#9 Jacques Orban 14 Schlumberger Technology
#10 Yuzhen Xue 14 Halliburton Energy Services
#11 Christopher Michael Jones 13 Halliburton Energy Services
#12 Andrew M. Ferguson 12 Thru Tubing Solutions
#13 Justin C. Logan 12 Evolution Engineering
#14 Philip D. Nguyen 12 Halliburton Energy Services
#15 Gary P. Funkhouser 11 Halliburton Energy Services
#16 Jinjiang Xiao 11 Saudi Arabian Oil
#17 Krishna M. Ravi 11 Halliburton Energy Services
#18 Phillip Sollami 11 The Sollami
#19 Andy Ferguson 10 Thru Tubing Solutions
#20 Bjoern Thiemann 10 Weatherford Technology Holdings
#21 Christopher L. Drenth 10 Longyear Tm
#22 Hsu-Hsiang Wu 10 Halliburton Energy Services
#23 Mark W. Roberson 10 Halliburton Energy Services
#24 Mikko Jaaskelainen 10 Halliburton Energy Services
#25 Michael T. Pelletier 10 Halliburton Energy Services
#26 Thomas Jules Frosell 10 Halliburton Energy Services
#27 Ashley Bernard Johnson 9 Schlumberger Technology
#28 David S. Wesson 9 Geodynamics
#29 Eldon Schelske 9 Typhon Technology Solutions (U.S.)
#30 Michael H. Johnson 9 Baker Hughes Holdings
#31 Muhammad Arsalan 9 Saudi Arabian Oil
#32 Ricardo Vasques 9 Schlumberger Technology
#33 Sameeh Issa Batarseh 9 Saudi Arabian Oil
#34 Stephen Michael Greci 9 Halliburton Energy Services
#35 Todd Coli 9 Typhon Technology Solutions (U.S.)
#36 Ahmed Elsayed Fouda 8 Halliburton Energy Services
#37 Ashish Gupta 8 Nabors Drilling Technologies Usa
#38 Dennis P. Nguyen 8 Cameron International
#39 John C. Gano 8 Halliburton Energy Services
#40 Joop Roodenburg 8 Itrec B.V.
#41 Matthew Stone 8 —
#42 Michael G. Azar 8 Smith International
#43 Ossama R. Sehsah 8 Saudi Arabian Oil
#44 Philip M. Snider 8 Geodynamics
#45 Ronald Glen Dusterhoft 8 Halliburton Energy Services
#46 Scott Goodwin 8 Halliburton Energy Services
#47 Xiaoqing Ge 8 Halliburton Energy Services
#48 Zachary William Walton 8 Halliburton Energy Services
#49 Adriaan Gisolf 7 Schlumberger Technology
#50 Andreas Peter 7 Baker Hughes Holdings
#51 Christian Eitschberger 7 Dynaenergetics Europe Gmbh
#52 Chad Lawman 7 National Service Alliance—Houston
#53 David Kubricht 7 National Service Alliance—Houston
#54 David Todd 7 National Service Alliance—Houston
#55 Djurre Hans Zijsling 7 Shell Oil Compny
#56 Henry E. Rogers 7 Halliburton Energy Services
#57 Jeffrey Pollack 7 National Service Alliance—Houston
#58 Joe Rodney Berry 7 Schlumberger Technology
#59 John J. Crosetto 7 National Service Alliance—Houston
#60 John Fischer 7 National Service Alliance—Houston
#61 Jon David Schroder 7 —
#62 Justin Fraczek 7 Ameriforge Group
#63 Luis Emilio San Martin 7 Halliburton Energy Services
#64 Martin Liess 7 Weatherford Technology Holdings
#65 Mohamed Ibrahim Saraya 7 Vertice Oil Tools
#66 Richard Cheatham 7 National Service Alliance—Houston
#67 Shaohua Kevin Zhou 7 Siemens Healthcare Limited
#68 Thomas Earl Burky 7 Halliburton Energy Services
#69 Todd Anthony Stair 7 Halliburton Energy Services
#70 Tyler Nolen 7 National Service Alliance—Houston
#71 Victor Carlos Costa de Oliveira 7 —
#72 Wenxuan Chen 7 Institute Of Geology And Geophysics, Chinese Academy Of Sciences
#73 Wenbo Yang 7 Schlumberger Technology
#74 Xiaowei Weng 7 Schlumberger Technology
#75 YingQing Xu 7 —
#76 Yongyou Yang 7 Institute Of Geology And Geophysics, Chinese Academy Of Sciences
#77 Youxiang Zuo 7 Schlumberger Technology
#78 Alexander Kendall 6 —
#79 Atanu Basu 6 Datainfocom Usa
#80 Bo Gao 6 Zte
#81 Bodong Li 6 Saudi Arabian Oil
#82 Chinthaka Pasan Gooneratne 6 Macquarie University
#83 Christopher R. Hern 6 —
#84 Christian Leuchtenberg 6 Managed Pressure Operations Pte.
#85 Chun-Yi Wang 6 Datainfocom Usa
#86 Cris Braun 6 Pruitt Tool & Supply
#87 Darren George Gascooke 6 Halliburton Energy Services
#88 Dale E. Jamison 6 Halliburton Energy Services
#89 Daniel Mohan 6 Datainfocom Usa
#90 Daniel George Purkis 6 Petrowell Limited
#91 Dennis Roessler 6 Geodynamics
#92 Diederick Bernardus Wijning 6 Itrec B.V.
#93 Evan Lloyd Davies 6 The Wellboss Company
#94 Frederick Johannes Venter 6 Datainfocom Usa
#95 Gary Joe Makowiecki 6 Halliburton Energy Services
#96 Gokturk Tunc 6 Schlumberger Technology
#97 Gregory L. Hern 6 Baker Hughes Holdings
#98 Grant Pruitt 6 Pruitt Tool & Supply
#99 Guijun Deng 6 Baker Hughes Oilfield Operations
#100 Gunther HH von Gynz-Rekowski 6 Workover Solutions

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Halliburton Energy Services 442
2 Baker Hughes Holdings 228
3 Schlumberger Technology 219
#4 Saudi Arabian Oil 169
#5 Weatherford Technology Holdings 98
#6 Cameron International 46
#7 Nabors Drilling Technologies Usa 38
#8 Phillips Petroleum 37
#9 Thru Tubing Solutions 31
#10 ExxonMobil 30
#11 National Oilwell Varco 26
#12 GE 21
#13 Geodynamics 20
#14 Chevron 20
#15 Forum Us 19
#16 Welltec Oilfield Solutions Ag 18
#17 Unknown 17
#18 Landmark Graphics 16
#19 Joy Global Underground Mining 15
#20 Shell Oil Compny 15
#21 Smith International 15
#22 Sandvik Intellectual Property Ab 14
#23 China University Of Mining And Technology 13
#24 Evolution Engineering 13
#25 Onesubsea Ip Uk Limited 13
#26 The Charles Machine Works 13
#27 Southwest Petroleum University 12
#28 Baker Hughes Oilfield Operations 11
#29 M-I L.L.C. 11
#30 The Sollami 11
#31 Caterpillar 11
#32 Ifp Energies Nouvelles 10
#33 Innovex Downhole Solutions 10
#34 The Wellboss Company 10
#35 Dynaenergetics Europe Gmbh 9
#36 Merlin Technology 9
#37 Typhon Technology Solutions (U.S.) 9
#38 Welltec A/S 9
#39 Equinor Energy As 8
#40 Frank'S International 8
#41 Impact Selector International 8
#42 Itrec B.V. 8
#43 Vetco Gray 8
#44 Bly Ip 7
#45 China University Of Petroleum—Beijing 7
#46 Exacta-Frac Energy Services 7
#47 Fmc 7
#48 Heal Systems Lp 7
#49 Hydril Usa Distribution 7
#50 Institute Of Geology And Geophysics, Chinese Academy Of Sciences 7
#51 Ncs Multistage 7
#52 Pruitt Tool & Supply 7
#53 Qinterra Technologies As 7
#54 Reveal Energy Services 7
#55 Ulterra Drilling Technologies 7
#56 Upwing Energy 7
#57 Intel 7
#58 Ameriforge Group 6
#59 China University Of Petroleum (East China) 6
#60 Cnpc Usa 6
#61 Datainfocom Usa 6
#62 Dreco Energy Services Ulc 6
#63 Mhwirth As 6
#64 National Service Alliance—Houston 6
#65 Sc Asset 6
#66 Us Synthetic 6
#67 Vertice Oil Tools 6
#68 Altus Intervention (Technologies) As 5
#69 Downing Wellhead Equipment 5
#70 Expro North Sea Limited 5
#71 Fmc Kongsberg Subsea As 5
#72 Joy Global Surface Mining 5
#73 Kholle Magnolia 2015 5
#74 Kobold 5
#75 Pason Systems 5
#76 University Of Texas System 5
#77 Vermeer Manufacturing 5
#78 Wellbore Integrity Solutions 5
#79 IBM 5
#80 Apple 4
#81 Diamond Innovations 4
#82 Dril-Quip 4
#83 Eagle Industry Co. 4
#84 Eni S.P.A. 4
#85 Ensco International Incorporated 4
#86 G&H Diversified Manufacturing Lp 4
#87 Gyrodata, Incorporated 4
#88 Helmerich & Payne Technologies 4
#89 Hunting Titan 4
#90 Hypersciences 4
#91 Impulse Downhole Solutions 4
#92 Motive Drilling Technologies 4
#93 National Oilwell Varco Norway As 4
#94 Novatek Ip 4
#95 Resman As 4
#96 Rival Downhole Tools Lc 4
#97 Robertson Intellectual Properties 4
#98 Sanvean Technologies 4
#99 Scientific Drilling International 4
#100 Sensia 4